Question regarding Syslast Automatic macro variable

[poo]

The following SAS code is submitted:

%macro houses(dsn = houses,sub = RANCH);

data &dsn;

set sasuser.houses;

if style = "&sub";

run;

%mend;

%houses(sub = SPLIT)

%houses(dsn = ranch)

%houses(sub = TWOSTORY)

Which one of the following is the value of the automatic macro variable SYSLAST?

A. work.ranch

B. work.houses

C. WORK.RANCH

D. WORK.HOUSES

It should be work.ranch but I have different answer in answer sheet.

[ChrisBrooks · Accepted solution]

It's WORK.HOUSES - the final macro call doesn't override the default data set name, it only overrides the default subset value so you have a data set called WORK.HOUSES only containing records where style="TWOSTORY".

[ballardw]

And it is the upper case value because that's the way SAS considers all library, table and variable names since it is case insensitive generally.

[poo]

Thanks ChrisBrooks and Ballardw. That is very helpful answer.